Which of the following is correct regarding statistical hypotheses (null hypothesis and alternative hypothesis)?
a. They describe the population parameters our sample data represent if there is or is not a predicted relationship.
b. They describe the sample data if there is or is not a relationship in the population.
c. We can prove a relationship exists in the population by confirming these hypotheses.
d. They are the hypotheses we perform on the statistics in our experiment.
a
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Achievement tests
a. evaluate the product of a course of training. b. evaluate the potential to learn general information. c. do not rely heavily on content validity. d. are not affected by educational background.
One reason that ADHD is so challenging is that approximately ____ percent of children with ADHD have a co-occurring psychological disorder
a. 60 b. 70 c. 80 d. 90
One positive aspect of becoming a great-grandparent is that it a. is a sign of social competence
b. marks a major longevity milestone. c. indicates that one is not docile. d. provides a good opportunity for disengagement.
Causes for intellectual disability include: a. prenatal influences
b. postnatal influences. c. Perinatal influencess. d. All of the above